To convey on a sled.
To ride a sled.
A vehicle on runners, used for conveying loads over the snow or ice. (contrast "sleigh", which is larger)
A small, light vehicle with runners, used recreationally, mostly by children, for sliding down snow-covered hills. (A "sled" in this sense is not pulled by an animal as a "sleigh" is.)
A snowmobile.
To strike with a sledgehammer.
A hammer that consists of a large, heavy, broad and flat block of metal (the head) attached to a handle typically 0.5 meter to 1 meter long. The sledgehammer's design is meant to allow it to be swung powerfully, and to distribute force over a wide area upon impact.